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First model shot & could use a few tips1671

Bellingham360 private msg quote post Address this user
Hello,

I shot my first model today and all seemed to go alright. After uploading the scans and seeing the completed model, I am noticing quite a few mis-alignments (notice the kitchen table area)and other areas of general ugliness (notice all along the stairwell bannister) Any critiques or tips would be greatly appreciated.

https://my.matterport.com/show/?m=qgK4suRixtN

Thanks, Lyle
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Basic htimsabbub23 private msg quote post Address this user
How did you level. The camera.. One thing very important is to level the camera on every move. We use small. Level set on top of the matterport to make sure every shot is level.
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Bellingham360 private msg quote post Address this user
Well, that could very well be the problem then. I didn't adjust the leveling after every position move.
Post 3 • IP   flag post
Basic htimsabbub23 private msg quote post Address this user
I am also very new at this, but that helped me so much. We have some experts is this group that will/can give you some great advice.
Post 4 • IP   flag post
Standard judysmithre private msg quote post Address this user
Just a few things I noticed. Man hiding in the master bedroom by the doorway is a little creepy, you can see hime from the top of the stairs. I usually remove dog dishes. Also, maybe try a different time of day so the sun won't make the floor washed out.

Still it was very nice for your first time.
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Bellingham360 private msg quote post Address this user
Yep, that creepy man is me... I'll hide better on the next one
Post 6 • IP   flag post
3rd Party Service alx3D private msg quote post Address this user
For your first scan this is great. I think @htimsabbub23 is on to something with the leveling causing misalignment on the stairs. Also maybe your top camera had a smear or water spot on it as it looks like it is showing up in a lot of scans.

In general I think you would be better served with fewer scans.

The model looks pretty clean except I do not think you marked the mirrors on the top floor.

Great first Scan!
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Bellingham360 private msg quote post Address this user
I'll make sure to check the lens and yes, I forgot to mark the mirror in the master bath. Were do you feel that I should have used fewer scans?
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HarlanHambright private msg quote post Address this user
Your leveling is nearly perfect throughout. Leveling is not the issue. The misalignments you see in the stairs is the result of the camera's 3 photo lenses having non-coincident nodal points. The only solution to this problem, which will always occur with objects close to the camera, would be some sort of geometric distortion algorithm built into the MP processor, not unlike the sometimes amazing results Photoshop's photo merge function generates.

And yes, you have way too many scans.

Great job for #1!
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3rd Party Service alx3D private msg quote post Address this user
I'd probably scan it something like this:

Post 10 • IP   flag post
Bellingham360 private msg quote post Address this user
Thanks @HarlanHambright I will give this one another try with fewer scans. With the number of scans captured, I was trying to make sure that there were no "black" areas in the rooms (or as few as possible."
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Bellingham360 private msg quote post Address this user
Perfect @alx3D, I'll give your path a try!
Post 12 • IP   flag post
HarlanHambright private msg quote post Address this user
Dont rescan, just disable the superfluous scans in workshop!
Post 13 • IP   flag post
Standard StevenHattan private msg quote post Address this user
That sure is a lot of scans. I sent you a PM if you want direct help.
Post 14 • IP   flag post
3rd Party Service alx3D private msg quote post Address this user
I think there is more going on here than just the non-coincident nodal points that cause misalignment in a lot of banisters. I don't know what it is but Camera obstruction would be my first guess.

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HarlanHambright private msg quote post Address this user
nope. that's nodal misalignment and MP rendering anomalies.
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HarlanHambright private msg quote post Address this user
To the credit of MP techs, the system, like the HDR quality which I think is very good, does a pretty good job dealing with this laws of physics issue. There's got to be a solution and I think it lies in Adobe's image merge technology.
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3rd Party Service alx3D private msg quote post Address this user
I get what you are saying and I understand that there is no way to perfectly align 18 photos that were taken from slightly different points. It typically doesn't show far away but becomes noticeable on close feature like the banister.

What I am talking about though is the "fuzzyness" that runs down the entire rail. That screen shot is from inside the model and should be pulling the actual photo data right?(18 images stitched together) from that spot and should not be a rendering.

Can you explain the fuzziness?

I have done a lot of scans (not a lot of 2 stories though) and have never seen that and am very interested in how this works.
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Standard GlennTremain private msg quote post Address this user
Congrats on your first scan. Also I love how people rally around everyone here and offer insight.
Post 19 • IP   flag post
ron0987 private msg quote post Address this user
Just my 2 cents is HarlanHambright is right on this, the alignment is at a point Matterport support says the cameras inability to properly align the photos in the stitching process when you are looking at a point that is within 15-20 inches, which usually occurs on stairs and especially stands out with banisters or railings and the second place when you place the camera in the door jam. You can see the same alignment issue in the upstairs bathroom when you are next to the doors when looking at the door jams, but it is not as pronounced. A camera being within that 15-20 inches causes this and I believe it is a nodal point issue. Nothing you can do about this other than attempt to avoid close quarters, which is impossible on staircases and doorways. I think the model looks good and you will pick up a lot of points here and just using it. In general its better to have to many scan points and turn off what you don't want for a smooth walk thru. I like you put the model out there as you shot it for input, people would think mine would have way to main scan point if I put in my rough models not my final product because I over scan to make the alignment go smoother, but turn off a lot when producing a final product. Just my 2 cents, may that was a nickel input.

Ron
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3rd Party Service alx3D private msg quote post Address this user
Just to clarify, I am not talking about the areas in red which are clearly stitching imperfections.

I am talking about the look of the hand reail between those points.
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Basic suncoastskyview private msg quote post Address this user
Nice job for a first. You're right, better too many scans than not enough. You can always remove some later.

Your problem with the staircase is interesting. I noticed that the direct sunlight seemed rather intense and the handrail was painted with glossy paint. I think the spectral highlights reflecting that sunlight into the camera might be your problem. Matterport cameras don't like bright sunlight.

I often try to close curtains, turn on electric lighting and turn off ceiling fans (they appear as blue blobs).

I'd try to re-shoot the staircase at a different time of day where the sunlight is less intense.

Again, great job and best of luck.

Best,

Rick Odato
Suncoast Skyview, Inc. Sarasota, FL
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360Verbeelding private msg quote post Address this user
hi, just my opinion. I had the same issue shooting inside a big supermarket. Ik think this can be solved bij placing the camera just a little bit higher. To me it looks like there is not enough visible information for the camera to fill in the openspaces of the handrail. Try to make a new scan at the center of the stairs at a higher level so the cameras that look down can see the edge of the handrail.

Its sometimes trail and error.

Grtz Rene.
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